If this was not a threat (of course it was!),
The people who wrote the stuff on the whiteboards could easily have been friends of the victims, and who didn't realize they were going overboard.
The military isn't composed of choirboys or chivalrous knights.
I'm astounded that *anyone* from our military forces (as simba9 says he is/was)
would make excuses for racists,
This takes planning and forethought